Pregnancy tests, due dates, pediatric dosing, vaccine schedules, and child growth calculators. Browse our free pregnancy & pediatric tools below — all calculators are instant, accurate, and require no sign-up.
Birth Control Cost Calculator — Compare the total cost of birth control methods over time. Factor in insurance coverage, copays, and method effectiveness for informed contraception decisions.
Clomid Ovulation Calculator — Predict ovulation timing, fertile window, and success rates when taking Clomid (clomiphene citrate). Estimate LH surge and best days for conception.
False Negative Pregnancy Test Calculator — Estimate the probability of a false negative pregnancy test based on DPO, test sensitivity, time of day, and cycle length. Know when to retest.
Ireland Vaccine Queue Estimator — Estimate your position in a vaccine rollout queue using Ireland-style priority groups. Adjust population, supply rate, and priority tiers to model any campaign.
Pediatric Maintenance Fluids Calculator — Calculate IV maintenance fluid rates for children using the Holliday-Segar (4-2-1) method. Includes dehydration correction and electrolyte requirements.
Pediatric GFR Calculator — Estimate glomerular filtration rate in children using Schwartz, Counahan-Barratt, and CKiD formulas. Includes CKD staging and age-specific normal ranges.
Pediatric Transfusion Calculator — Calculate blood product doses for children: pRBC, platelets, FFP, and cryoprecipitate. Includes estimated blood volume, infusion rates, and expected response.
Positive Pregnancy Test Calculator — After a positive pregnancy test, estimate gestational age, hCG projections, due date, and key pregnancy milestones based on DPO and hCG levels.
Pregnancy Test Calculator — Determine the best time to take a pregnancy test based on DPO, cycle length, and test type. Compare home, early, and blood test accuracy rates.
Pregnancy Test at 3 Weeks Calculator — Can you detect pregnancy at 3 weeks? Estimate test accuracy at this very early stage based on implantation timing, hCG levels, and test type sensitivity.
Stillbirth Risk Assessment Calculator — Estimate stillbirth risk based on gestational age, maternal factors, and known risk factors. Understand modifiable and non-modifiable risk contributors.
Urine Pregnancy Test Calculator — Compare home pregnancy test brands by sensitivity and cost. Factor in urine concentration, hold time, and read window for the most accurate result.
Vaccine Strategy Calculator — Model vaccine distribution strategies: compare dosing approaches, estimate rollout timelines, and analyze supply constraints for any population and vaccine.
Vaccine Production Calculator — Model vaccine manufacturing capacity and timelines: compare platforms (mRNA, viral vector, inactivated), estimate ramp-up, costs, and cold chain requirements.
Vaccine Immunity Duration Calculator — Estimate how long vaccine immunity lasts: model antibody decay, T-cell memory, and booster timing based on vaccine type, age, and immunological factors.
Vaccine Queue Estimator — Australia — Estimate your place in a vaccine queue for Australia. Adjustable population, supply rates, priority groups, and uptake parameters for any vaccine rollout.
Vaccine Queue Estimator — Canada — Estimate your vaccine queue position in Canada. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
Vaccine Queue Estimator — England — Estimate your vaccine queue position in England. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
Vaccine Queue Estimator — India — Estimate your vaccine queue position in India. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
Vaccine Queue Estimator — Netherlands — Estimate your vaccine queue position in the Netherlands. Model rollout timelines with adjustable population, supply, priority groups, and uptake.
Vaccine Queue Estimator — Malaysia — Estimate your vaccine queue position in Malaysia. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
Vaccine Queue Estimator — Northern Ireland — Estimate your vaccine queue position in Northern Ireland. Model rollout timelines with adjustable population, supply, priority groups, and uptake.
Vaccine Queue Estimator — Philippines — Estimate your vaccine queue position in the Philippines. Model rollout timelines with adjustable population, supply, priority groups, and uptake.
Vaccine Queue Estimator — South Africa — Estimate your vaccine queue position in South Africa. Model rollout timelines with adjustable population, supply, priority groups, and uptake.
Vaccine Queue Estimator — Scotland — Estimate your vaccine queue position in Scotland. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
Vaccine Queue Estimator — United Kingdom — Estimate your vaccine queue position in the UK. Model rollout timelines with adjustable population, supply, JCVI priority groups, and uptake.
Vaccine Queue Estimator — Wales — Estimate your vaccine queue position in Wales. Model rollout timelines with adjustable population, supply, priority groups, and uptake parameters.
VTE Risk in Pregnancy Calculator — Assess venous thromboembolism (VTE) risk during pregnancy and postpartum. Score 20 risk factors with odds ratios, stage-specific multipliers, and prophylaxis effects.